资料来源 : Webster's Revised Unabridged Dictionary (1913)

Monas \Mo"nas\, n. [NL. See {Monad}.] (Zo["o]l.)
   A genus of minute flagellate Infusoria of which there are
   many species, both free and attached. See Illust. under
   {Monad}.

资料来源 : WordNet®

monas
     n : a singular metaphysical entity from which material
         properties are said to derive [syn: {monad}]